Sliding-window-sash lock



Nov. 25, 1924. 1,516,673

M. HANISKO SLIDING WINDOW SASH LOCK Filed March 20. 1924 Patented Nov. 25, 1924.

nits

MICHAEL HANISKO, OF WJI'IT, ILLINOIS.

SLIDING-WINDOVf-SASH LOCK.

Application filed March 20, 1924.

To all whom it may concern..-

Be it known that 1. MICHAEL HANisKo, a citizen of the United States, residing at Witt, in the county of ldontgomery and State of Illinois, have invented certain new and useful Improvements in Sliding-findow-Sash Locks, of which the following is a specification.

My invention relates to sash looks more particularly adapted for use in connection with sliding window sash, and, is a distinct and practical improvement to overcome certain practical objections to. and defects in the universal type of sash locks.

An object of my invention is the provision of a sash lock consisting of a minimum num ber of parts which may be readily applied to either, or both of the vertical side rails of an upper sliding window sash to prevent the upper sash from being lowered beyond a predetermined distance. or the lower sash from being raised beyond a predetermined distance, yet permit both sash to be moved toward each other if desired to permit ventilation of a room from above and below the sash, if desired.

A. further objectof the invention is the provision of a sash lock consisting of a plate adapted to be fixed to one of the side rails of a sliding window sash and having a laterally extended sleeve for receiving a sash stop member capable of pivotal displacement to permit the head thereof being moved in an arcuate path into or out of operative position.

A still further object of the invention is the provision of a sash stop which is simple and inexpensive in construction and in application to a window sash and which is highly efficient for the purpose intended.

With the above and other objects in view, the invention consists in the novel features of construction, arrangement and combination of parts hereinafter more fully described and finally pointed out in the claims hereto appended.

Referring to the accompanying drawings forming a part of this specification, wherein like characters of reference denote similar parts throughout the several views:

Fig. 1, is a perspective view of a pair of sliding window sash, the side rails of one of which is provided with a sash lock or stop embodying the features of my invention.

Fig. 2, is a plan view of the same.

Fig. 3, is a front elevation thereof.

Serial No. 700,702.

Fig. 4, is a view in perspective of the sash lock plate.

Fig. 5, is a view stop member.

Fig. 6, is a view in perspective or a modified form of sash stop member.

Referring to the drawing, the reference character 1 represents one of the side rails of an upper sliding window sash, and, 2 the upper rail of a lower sliding window sash.

In carrying out the aim of my present in vention, I employ a suitable metallic plate 3 having a plurality of fastener receiving openings 4 to permit the plate to be securely fixed my means of screws 5 to one, or both of the side rails 1 of an upper sliding win dow sash at any determined position above the lower cross rail of the upper sash, said point of application being determined by the distance it is desired to lower the upper sash, or raise the lower sash while the sash fastener is adjusted to prevent either sash from being moved beyond a predetermined distance. The plate 3 is provided with a laterally extending ear which is curved to form a sleeve 6 through which a screw threaded shank 7 of a sash stop member may pass in an upwardly direction. The shank is provided with a nut 8 to prevent the shank from becoming accidentally detached from the sleeve 6.

The lower end of the shank 7 is bent laterally at substantially a right angle thereto to form a shoulder 9 and this shoulder terminates in a suitably shaped head 10 which may be in the shape of a loop, as shown in Fig. 5.

The lower edge of the sleeve 6 is provided with a recess 11 for the reception of the shank shoulder 10 when the sash stop member is to be locked in its operative position through the medium of the nut 8, as clearly shown in Fig. l, to prevent pivotal displacement of the head 10 which head acts as a stop to prevent the upper rail of the lower sash from being raised higher than said head 10, or, the upper sash to be lowered any greater distance than the lower sash can be moved. The lower sash can only be raised such distance as will cause the upper rail thereof to engage the head 10, and, the upper sash can only be lowered such distance as will cause the head 10 to engage the upper rail of the lower sash. It is evident, however, that both sash can be moved toward each other, if desired, thereby permitting in perspective of the sash ventilation of a room from above the upper window sash as well as from below the lower sash.

In Fig. 5, I have shown a modification of the sash stop member. In this modiiicz tion, I provide the shank 7 with a solid metallic head 10 instead of a looped head, and I substitute the lug 12 on the upper face of the head 10 for the shoulder 9 of the shank 7 for reception in the recess 11 to prevent pivotal displacement of the shank 7 and head 10 thereof with relation to the sleeve 6.

The operation of the sash lock set out in the foregoing description is as follows:

hen the stop member of the device is in the position as shown in dotted lines in Fig. 2, the upper or lower sash may be freely moved up or down the full distance of window. frame as is evident.

When it is desired to limit the sliding movement of both sash to prevent unauthorized persons from entering through the window and yet permit the upper sash to be lowered a predetermined distance, or the lower sash to be raised a predetermined distance to allow air circulation, the nut 8 is loosened, which allows pivotal movement of the shank 7 causing the head 10 thereof to move in an arcuate path into the path of travel or movement of the meeting rail of the lower window sash. IVhen in this posi tion, the shoulder is moved into the recess 11 and the nut again tightened which provents pivotal displacement of the stop meni- L her and limits the sliding movement of either sash beyond a predetermined distance. which distance is determined by the application of the plate 3 to one of the rails of the upper window sash.

The many advantages of the herein described invention will readily suggest themselves to those skilled in the art to which it appertains.

I do not desire to be understood as limiting myself to the exact details of construction and arrangement of parts as herein described and illustrated, as it is manifest that variations and modifications may be made without departing from the spirit and scope of my invention and the terms of the following claims, hence I wish it to be understood that I reserve the right to make any such changes, or modifications as may fairly fall within the scope of the appended claims when fairly construed.

hat I claim is:

1. A sash lock consisting of a plate fixed to one of the side rails of an upper slidingwindow sash, a sleeve integral with said plate having a recess in its lower edge, a sash stop member comprising a screw threaded shank receivable in the sleeve and disposed in a vertical position, a shoulder extending from the lower end of said shank. a head terminating from said shoulder and a securing" nut for said shank for locking the stop member in or out of operative position.

2. In combination with the side rail of an upper sash and the meeting rail of a lower sash, of a plate having a sleeve fixed to the side rail of the upper sash, a stop member consisting of a screw threaded shank and a head laterally directed from the lower end thereof pivotally supported by said sleeve and means preventing pivotal displacement of said stop member when in operative position to prevent movement of either sliding sash beyond a predetermined distance. i

In. testimony whereof, I have hereunto signed my name to the specification.

MICHAEL HANISKO. 

